防松螺母[img=,]https://img6.kcimg.cn/bbs/month_1401/140129012417b8e653caff8fbb.jpg[/img]



橡胶垫  [img=,]https://img6.kcimg.cn/bbs/month_1401/1401290124e3c2b15452ff6763.jpg[/img]




上紧   [img=,]https://img6.kcimg.cn/bbs/month_1401/1401290124b7961e3f9adec6e9.jpg[/img]


看起来还不赖   
[img=,]https://img6.kcimg.cn/bbs/month_1401/140129012407e0641637481490.jpg[/img]